Color panel and display apparatus including the same

ABSTRACT

According to one or more embodiments, a color panel includes: a substrate including a display area and a non-display area at least partially surrounding the display area, the display area including a plurality of pixel areas; a color filter layer arranged on the substrate to transmit incident light of a particular wavelength band; and a color conversion layer arranged on the color filter layer and including a plurality of quantum dots to convert the incident light into light of a particular wavelength band and to output the converted light, wherein the color conversion layer includes a dummy element that is apart from the display area and is arranged in the non-display area.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority to and the benefit of Korean PatentApplication No. 10-2019-0089207, filed on Jul. 23, 2019, in the KoreanIntellectual Property Office, the entire content of which isincorporated herein by reference.

BACKGROUND 1. Field

One or more aspects of embodiments of the present disclosure aredirected toward a color panel and a display apparatus including thecolor panel.

2. Description of Related Art

Display apparatus, which are apparatuses for visually expressing data,are used for various purposes in various fields.

Recently, due to diversification in purposes of the display apparatuses,various product designs for improving quality of the display apparatuseshave been tried. Particularly, as the display apparatuses have higherresolution, research to improve color gamut of the display apparatuseshas been actively performed. Recently, by developing display apparatusesincluding color conversion elements that include quantum dots, displayapparatuses having improved light efficiency and color gamut have beenprovided.

SUMMARY

In the color conversion elements arranged at a profile in the displayarea of a related art display apparatus, due to oxidization and/ordeterioration, stains may be seen in the display area, or furthermore,reliability errors may occur.

One or more aspects of embodiments of the present disclosure aredirected to a color panel having improved display characteristic andreliability and to a display apparatus including the color panel.

Additional aspects will be set forth in part in the description whichfollows and, in part, will be apparent from the description, or may belearned by practice of the presented embodiments of the disclosure.

According to one or more embodiments, a color panel may include asubstrate including a display area including a plurality of pixel areasand a non-display area at least partially surrounding the display area,a color filter layer arranged on the substrate and to transmit incidentlight of a particular wavelength band, and a color conversion layerarranged on the color filter layer and including a plurality of quantumdots or light-scattering particles, wherein the plurality of quantumdots are to convert the incident light into converted light of aparticular wavelength band, different from the wavelength band of theincident light, and output the converted light, wherein thelight-scattering particles are to transmit the incident light, andwherein the color conversion layer may further include a dummy elementthat is apart from the display area and is in the non-display area.

The plurality of pixel areas may include a first pixel area, a secondpixel area, and a third pixel area, and the color conversion layer mayinclude a first element to cover a first pixel area, a second element tocover a second pixel area, and a third element to cover a third pixelarea, wherein the third element is integrally arranged at a portion ofthe display area and a portion of the non-display area, and the firstelement, the second element, the third element, and the dummy elementmay be separated from one another.

The dummy element may include the same material as that of the firstelement, the second element, and/or the third element.

The color panel may further include a light-shielding member between thesubstrate and the color conversion layer, the light-shielding memberbeing in the non-display area and between any two of the plurality ofpixel areas.

The color filter layer may include a first color filter to cover a firstpixel area, a second color filter to cover a second pixel area, and athird color filter to cover a third pixel area, wherein the color panelmay further include a light-shielding color filter between the substrateand the light-shielding member, the light-shielding color filtercorresponding to an area between the first pixel area and the secondpixel area, and the light-shielding color filter may include the samematerial as that of the third color filter.

A portion of the third color filter may be between the substrate and thelight-shielding member.

The color panel may further include a dummy color filter that is apartfrom the dummy element and is in at least in a portion of thenon-display area, wherein the dummy element may be between the displayarea and the dummy color filter.

The first element, the second element, the third element, and the dummyelement may each correspond to any one of: a first color conversionelement including a plurality of quantum dots to convert the incidentlight into light of a first wavelength band, a second color conversionelement including a plurality of quantum dots to convert the incidentlight into light of a second wavelength band, or a light-transmittingelement including light-scattering particles to transmit the incidentlight.

According to one or more embodiments, a display apparatus may include adisplay panel including a plurality of emission elements, a color panelon the display panel and having a plurality of pixel areas arranged tooverlap the plurality of emission elements, wherein the color panelfurther includes a substrate including a display area and a non-displayarea surrounding the display area, the display area including theplurality of pixel areas, a light-shielding member arranged tocorrespond to the non-display area, a color filter layer to transmitincident light of a particular wavelength band, and a color conversionlayer on the color filter layer, wherein the color conversion layer mayinclude a plurality of elements, and one of the plurality of elementsmay be arranged to extend from the display area to the non-display area.

The color conversion layer may include a first color conversion elementto convert incident light into light of a first wavelength band, asecond color conversion element to convert incident light into light ofa second wavelength band, and a light-transmitting element.

The one of the plurality of elements may include any one selected fromthe first color conversion element, the second color conversion element,and the light-transmitting element.

The display apparatus may further include a dummy element in thenon-display area, wherein the dummy element may be arranged apart fromthe one of the plurality of elements.

The color filter layer may include a first color filter between thesubstrate and the first color conversion element to transmit light of afirst wavelength band, a second color filter between the substrate andthe second color conversion element to transmit light of a secondwavelength band, and a third color filter between the substrate and thelight-shielding member to transmit light of a third wavelength band.

The dummy element may include the same material as that of at least oneselected from the first color conversion element, the second colorconversion element, the first color filter, and the second color filter.

According to one or more embodiments, a display apparatus may include afirst emission element, a second emission element, a third emissionelement, a color panel on the display panel, wherein the color panel mayinclude a substrate including a display area and a non-display area atleast partially surrounding the display area, a color filter layer onthe substrate to transmit incident light of a particular wavelengthband, and a color conversion layer on the color filter layer andincluding a plurality of quantum dots or light-scattering particles,wherein the plurality of quantum dots are to convert the incident lightinto converted light of a particular wavelength band and output theconverted light, wherein the light-scattering particles are to transmitthe incident light, and wherein the color conversion layer may include afirst element to overlap a first emission element, a second element tooverlap a second emission element, a third element to overlap a thirdemission element, and a dummy element in at least a portion of thenon-display area, wherein the first element, the second element, thethird element, and the dummy element may be arranged apart from oneanother.

A portion of the third element of the color conversion layer may extendtoward the non-display area and cover a portion of the non-display area.

One selected from the first element, the second element, and the thirdelement may include first quantum dots to convert the incident lightinto light of a wavelength band of a first color, another one selectedfrom the first element, the second element, and the third element mayinclude second quantum dots to convert the incident light into light ofa wavelength band of a second color, and remaining one of the firstelement, the second element, and the third element may includelight-scattering particles.

The dummy element may include that same material as that of any one ofthe first element, the second element, or the third element.

The color filter layer may include a first color filter to overlap thefirst element, a second color filter to overlap the second element, anda third color filter to overlap the third element, and the color panelmay further include a material portion located between the first colorfilter and the second color filter and including the same material asthat of the third color filter.

The dummy element may include the same material as that of any one ortwo color filters selected from among the first color filter, the secondcolor filter, and the third color filter.

Other aspects, features, and advantages will be clearly understood fromdrawings, claims, and detailed descriptions.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other aspects, features, and advantages of certainembodiments of the disclosure will be more apparent from the followingdescription taken in conjunction with the accompanying drawings, inwhich:

FIG. 1A is a schematic top-plan view of a display apparatus according toan embodiment;

FIG. 1B is a schematic cross-sectional view of the display apparatusshown in FIG. 1A according to an embodiment;

FIG. 2A is a cross-sectional view of a color panel according to anembodiment;

FIG. 2B is a cross-sectional view of a color panel according to anembodiment;

FIG. 2C is a cross-sectional view of a color panel according to anembodiment;

FIG. 3A is a cross-sectional view of a color panel according to one ormore embodiments of the present disclosure;

FIG. 3B is a cross-sectional view of a color panel according to one ormore embodiments of the present disclosure;

FIG. 3C is a cross-sectional view of a color panel according to one ormore embodiments of the present disclosure;

FIG. 3D is a cross-sectional view of a color panel according to one ormore embodiments of the present disclosure;

FIG. 4 is a cross-sectional view of a display apparatus according to anembodiment;

FIG. 5 is an equivalent circuit diagram of a pixel circuit included in adisplay apparatus according to an embodiment;

FIG. 6A is a cross-sectional view of a display apparatus according toone or more embodiments of the present disclosure;

FIG. 6B is a cross-sectional view of a display apparatus according toone or more embodiments of the present disclosure.

FIGS. 7A-7C are schematic diagrams of a display apparatus according toone or more embodiments of the present disclosure.

DETAILED DESCRIPTION

As the present disclosure allows for various changes and numerousembodiments, particular embodiments will be illustrated in the drawingsand described in more detail in the written description. Advantages andfeatures of the present disclosure and methods of achieving theadvantages and features will be described more fully with reference tothe accompanying drawings, in which embodiments of the presentdisclosure are shown in more detail. However, the present disclosure maybe embodied in many different forms and should not be construed aslimited to the embodiments set forth herein.

Reference will now be made in more detail to embodiments, examples ofwhich are illustrated in the accompanying drawings, wherein likereference numerals refer to like elements throughout, and overlappingdescription will be omitted.

It will be understood that although terms such as “first,” “second” maybe used herein to describe various components, these components are notlimited by these terms, and the terms are only used to distinguish onecomponent from one another.

As used herein, the singular forms “a,” “an,” and “the” are intended toinclude the plural forms as well, unless the context clearly indicatesotherwise.

It will be further understood that the terms “includes,” “including,”“comprises,” and/or “comprising” used herein specify the presence ofstated features or components, but do not preclude the presence oraddition of one or more other features or components.

In embodiments, it will be understood that when a layer, an area, or acomponent is referred to as being on another layer, area, or component,the layer, area, or component may be directly on the other layer, area,or component, or an intervening layer, region, or component may bepresent therebetween. In contrast, when a layer, an area, or a componentis referred to as being “directly on” another layer, area, or component,there are no intervening elements present.

Sizes of components in the drawings may be exaggerated or reduced forconvenience of explanation. In other words, since sizes and thicknessesof components in the drawings are arbitrarily illustrated forconvenience of explanation, the present disclosure is not limitedthereto.

When a certain embodiment may be differently implemented, a specificprocess order may be performed differently from the described order. Forexample, two consecutively described processes may be performedsubstantially at the same time or performed in an order opposite to thedescribed order.

In the specification, “A and/or B” indicates A, B, or A and B. “At leastone of A and B” also indicates A, B, or A and B.

In the following embodiments, when a layer, region, or component isconnected to another layer, region, or component, the layer, region, orcomponent may be directly connected to the other layer, region, orcomponent, and may be indirectly connected to the other layer, region,or component with another layer, region, or component therebetween. Forexample, in the present specification, when a layer, region, orcomponent is electrically connected to another layer, region, orcomponent, the layer, region, or component may be electrically connectedin a direct manner to the other layer, region, or component, andelectrically connected in an indirect manner to the other layer, region,or component with another layer, region, or component therebetween.

In embodiments, x axis, y axis, and z axis are not limited to three axeson a rectangular coordinate system and may be interpreted to have awider meaning. For example, the x axis, y axis, and z axis may beorthogonal to one another but may also indicate different directionsthat are not orthogonal to one another.

FIG. 1A is a schematic top-plan view of a display apparatus 1000according to an embodiment.

Referring to FIG. 1A, the display apparatus 1000 according to one ormore embodiments may include a display area DA, through which an imagemay be output, and a non-display area NDA that is an area except (thatis not) the display area DA. For example, the display apparatus 1000 mayprovide an image to outside by using light emitted through the displayarea DA.

The display area DA may include a plurality of pixel areas PA, forexample, a first pixel area PA1, a second pixel area PA2, and a thirdpixel area PA3. For example, the first pixel area PA1, the second pixelarea PA2, and the third pixel area PA3 may respectively correspond tored, green, and blue pixels.

The pixel areas PA may each be systemically arranged in the display areaDA. FIG. 1A shows that the pixel areas PA are arranged to constructcolumns and rows, but arrangement of the pixel areas PA may be variouslysuitably modified. For example, the pixel areas PA may be arranged in aPentile type (e.g., a PenTile matrix).

The non-display area NDA may be provided to at least partially surroundthe display area DA. According to an embodiment, the non-display areaNDA may be provided to entirely surround the display area DA, as shownin FIG. 1A. According to another embodiment, the non-display area NDAmay also be provided to partially surround an outline of the displayarea DA.

FIG. 1A shows the display apparatus 1000 in which the display area DA isa rectangle, but the present disclosure is not limited thereto. Forexample, a shape of the display area DA may be a circle, an oval, and/ora polygon (such as a triangle and/or a pentagon). The display apparatus1000 of FIG. 1A may be embodied (utilized) in various displayapparatuses, such as a flexible display apparatus, a foldable displayapparatus, and/or a rollable display apparatus.

FIG. 1B is a schematic cross-sectional view of the display apparatus1000 shown in FIG. 1A according to an embodiment.

Referring to FIG. 1B, the display apparatus 1000 may include a displaypanel 400 and a color panel 100 arranged on the display panel 400.

The display panel 400 may include a plurality of pixels (for example,PX1, PX2, and PX3) emitting light based on an electrical signal. Lightemitted through the display panel 400 may be irradiated toward the colorpanel 100, and light L1, L2, and L3 transmitted through the color panel100 may be output to the outside.

Each pixel in the display panel 400 may include an emission elementemitting light and a pixel circuit for controlling the emission element.For example, the display panel 400 may include an organic light-emittingdiode (OLED) as an emission element.

Hereinafter, the display apparatus 1000 according to one or moreembodiments is described as an organic light-emitting display apparatusas an example, but the present disclosure is not limited thereto. Forexample, the display apparatus 1000 according to one or more embodimentsmay be an inorganic light-emitting display that includes an inorganiclight-emitting diode as an emission element, or a quantum dotlight-emitting display that includes quantum dots as emission elements.For example, an emission layer of the emission element provided in thedisplay panel 400 may include an organic material, an inorganicmaterial, quantum dots, an organic material and quantum dots, aninorganic material and quantum dots, or at least one of each of anorganic material, an inorganic material, and quantum dots. In someembodiments, the display apparatus 1000 may be a liquid crystal displaydevice (LCD) including a backlight unit and a liquid crystal layer.

The color panel 100 may include at least one of the color filter orcolor conversion element in areas that overlap the pixels PX1, PX2, andPX3 of the display panel 400. For example, the light incident on thecolor panel 100 may be converted or transmitted and output to outsidebased on characteristics of at least one of the color filter or colorconversion element. For example, the display apparatus 1000 may outputlight L1, L2, and L3 having different color characteristics according topixels, according to characteristics of the color panel 100 overlappingeach of the pixels.

FIG. 2A is a cross-sectional view of the color panel according to anembodiment.

For example, FIG. 2A may be a schematic cross-sectional view of a colorpanel 100 when the display apparatus 1000 shown in FIG. 1A is cut alongline I-I′.

Referring to FIG. 2A, the color panel 100 according to one or moreembodiments may include a substrate 110, a color filter layer 120, acolor conversion layer 140, and a planarization layer 150.

The substrate 110 may include a display area DA, which includes aplurality of pixel areas (for example, a first pixel area PA1, a secondpixel area PA2, and a third pixel area PA3) spaced apart from oneanother, and a non-display area NDA that does not include a pixel area.

The color conversion layer 140 may include the color conversion elementsincluding a plurality of quantum dots that convert light Li, which isincident on the color panel 100, into lights L1, L2, and L3 inparticular (or set) wavelength bands.

The color conversion layer 140 may include a first element 142, a secondelement 144, a third element 146, and a dummy element 148.

For example, in the display area DA, the color conversion layer 140 mayinclude the first element 142 that covers the first pixel area PA1, thesecond element 144 that covers the second pixel area PA2, and the thirdelement that covers the third pixel area PA3.

The first element 142 may be a first color conversion element thatincludes first quantum dots for converting incident light Li to light L1of a first wavelength band and outputting the converted light.

The second element 144 may be a second color conversion element thatincludes second quantum dots for converting the incident light Li tolight L2 of a second wavelength band and outputting the converted light.

A size and structure of the first quantum dots may be different from asize and structure of the second quantum dots. For example, the firstquantum dots and the second quantum dots may respectively have differentparticle sizes and thus emit light L1 and L2 having different colorcharacteristics to outside. For example, the light L1 in the firstwavelength band and the light L2 in the second wavelength band may eachhave a wavelength value greater than that of the incident light Li.

The third element 146 may be a light-transmitting element that includeslight-scattering particles transmitting the incident light Li and doesnot include particular quantum dots. For example, a wavelength band oflight output through the third element 146 may be identical to awavelength band of the incident light Li that is incident on the thirdelement 146.

For example, the light L1 output through the first pixel area PA1 mayhave a wavelength corresponding to red light, the light L2 outputthrough the second pixel area PA2 may have a wavelength corresponding togreen light, and the light L3 output through the third pixel area PA3may have a wavelength corresponding to blue light.

The color conversion element (for example, the first color conversionelement and/or the second color conversion element) may include aphotosensitive polymer in which quantum dots and light-scatteringparticles are distributed. The quantum dots may convert the incidentlight Li into light of a particular wavelength band and output theconverted light. The photosensitive polymer may be an organic materialhaving light transmissivity. The light-scattering particles may scattera portion of the incident light Li that is not absorbed by the quantumdots to allow a greater number of quantum dots to be excited, therebyincreasing a color conversion rate of the color conversion element. Forexample, the light-scattering particles may include titanium oxide(TiO₂) and/or a metal particle.

A core of the quantum dot may be selected from among a Group II-VIcompound, a Group III-V compound, a Group IV-VI compound, a Group IVelement, a Group IV compound, and combinations thereof.

The Group II-VI compound may be selected from among: a two-elementcompound selected from among CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnO, HgS,HgSe, HgTe, MgSe, MgS, and combinations thereof; a three-elementcompound selected from among CdSeS, CdSeTe, CdSTe, ZnSeS, ZnSeTe, ZnSTe,HgSeS, HgSeTe, HgSTe, CdZnS, CdZnSe, CdZnTe, CdHgS, CdHgSe, CdHgTe,HgZnS, HgZnSe, HgZnTe, MgZnSe, MgZns, and combinations thereof; and afour-element compound selected from among HgZnTeS, CdZnSeS, CdZnSeTe,CdZnSTe, CdHgSeS, CdHgSeTe, CdHgSTe, HgZnSeS, HgZnSeTe, HgZnSTe, andcombinations thereof.

The Group III-V compound may be selected from among: a two-elementcompound selected from GaN, GaP, GaAs, GaSb, AlN, AlP, AlAs, AlSb, InN,InP, InAs, InSb, and combinations thereof; a three-element compoundselected from among GaNP, GaNAs, GaNSb, GaPAs, GaPSb, AlNP, AlNAs,AlNSb, AlPAs, AlPSb, InNP, InNAs, InNSb, InPAs, InPSb, GaAlNP andcombinations thereof; and a four-element compound selected from amongGaAlNAs, GaAlNSb, GaAlPAs, GaAlPSb, GaInNP, GaInAs, GaInNSb, GaInPAs,GaInPSb, InAlNP, InAlNAs, InAlNSb, InAlPAs, InAlPSb, and combinationsthereof.

The Group IV-VI compound may be selected from among: a two-elementcompound selected from among SnS, SnSe, SnTe, PbS, PbSe, PbTe, andcombinations thereof; a three-element compound selected from SnSeS,SnSeTe, SnSTe, PbSeS, PbSeTe, PbSTe, SnPbS, SnPbSe, SnPbTe, andcombinations thereof; and a four-element compound selected from amongSnPbSSe, SnPbSeTe, SnPbSTe, and combinations thereof. The Group IVelement may be selected from among Si, Ge, and a combination thereof.The Group IV compound may be two-element compound selected from amongSiC, SiGe, and a combination thereof.

In one or more embodiments, the two-element compound, the three-elementcompound, and the four-element compound may each independently be inparticles in uniform concentrations or be in the same particle in astate of being partially divided according to different concentrations.The quantum dot may also have a core-shell structure in which onequantum dot surrounds another quantum dot. The interface between thecore and the shell may have a concentration gradient in which aconcentration of an element in the shell decreases toward a center.

In some embodiments, the quantum dot may have a core-shell structurethat includes a core including the above-described nanocrystal and ashell surrounding the core. The shell of the quantum dot may serve as aprotective layer for preventing (or reducing) chemical change of thecore, and may maintain properties of the semiconductor and/or a charginglayer for giving an electrophoretic property to the quantum dot. Theshell may include a single layer or a multi-layer. The interface betweenthe core and the shell may have a concentration gradient in which aconcentration of an element in the shell decreases toward a center. Theshell in the quantum dot may include, for example, an oxide of a metalor a non-metal, a semiconductor compound, a combination thereof, and/orthe like.

For example, the oxide of metal or a non-metal may include a two-elementcompound such as SiO₂, Al₂O₃, TiO₂, ZnO, MnO, Mn₂O₃, CuO, FeO, Fe₂O₃,Fe₃O₄, CoO, Co₃O₄, and/or NiO, and/or a three-element compound such asMgAl₂O₄, CoFe₂O₄, NiFe₂O₄, and/or CoMn₂O₄, but the present embodiment isnot limited thereto.

The semiconductor compound may include, for example, Cds, CdSe, CdTe,ZnS, ZnSe, ZnTe, ZnSeS, ZnTeS, GaAs, GaP, GaSb, HgS, HgSe, HgTe, InAs,InP, InGaP, InSb, AlAs, AlP, AlSb, and/or the like, but the presentembodiment is not limited thereto.

The quantum dot may have a full width of half maximum (FWHM) of about 45nm or less, for example, about 40 nm or less, or about 30 nm or less,and color purity or color gamut may be enhanced in the above-mentionedrange. In addition, as light emitted from the quantum dot is irradiatedin all directions, field angle of light may widen.

A shape of the quantum dot may be any suitable shape used in thetechnical field and is not particularly limited. For example, the shapeof the quantum dot may include a sphere, a pyramid shape, a multi-armshaped and/or a cubic-shaped nano particle, nano tube, nano wire, nanofabric, nano laminar particle, and/or the like.

Colors of emitted light may be adjusted according to sizes of particlesof quantum dots, and thus, the quantum dots may have various suitableemission colors such as blue, red, and green.

The color conversion layer 140 may include at least one dummy element148 located in the non-display area NDA. The dummy element 148 may bearranged apart from the display area DA. In some embodiments, the dummyelement 148, the first element 142, the second element 144, and thethird element 146 may be arranged apart from one another.

The dummy element 148 may include the same material as one of elements(for example, the first element 142, the second element 144, and/or thethird element 146) of the color conversion layer 140 provided in thedisplay area DA. For example, the dummy element 148 may include the samematerial as any one of the first color conversion element, the secondcolor conversion element, and/or the light-transmitting element.

In an example, the dummy element 148 may include a photosensitivepolymer, in which quantum dots (for example, any one of the firstquantum dots and the second quantum dots) and the light-scatteringparticles are distributed. In another example, the dummy element 148 mayinclude a photosensitive polymer, in which light-scattering particlesare distributed, but may not include quantum dots.

For example, the dummy element 148 may include the same material as aparticular element (for example, the first element 142, the secondelement 144, and/or the third element 146) covering the pixel areas PA,based on arrangement rules of the pixel areas PA in the display area DA.According to an embodiment, when pixel areas PA corresponding to red,green, and blue colors are alternatively arranged in the display areaDA, and a pixel area corresponding to blue color is arranged at an endportion of the display area DA, the dummy element 148 of the non-displayarea NDA adjacent to the pixel area PA corresponding to blue color mayinclude the same material as an element covering a pixel area PAcorresponding to red color.

According to one or more embodiments of the present disclosure, byincluding the dummy element 148 arranged in the non-display area NDA,the color panel 100 may prevent (or reduce) deterioration of eachelement (for example, the third element 146 adjacent to the dummyelement 148) of the color conversion layer 140 covering the pixel areaPA, and may minimize (or reduce) stains caused due to the elements inthe display area DA.

In a related art color panel that does not include the dummy element(e.g., the dummy element 148 shown in FIG. 2A), in the forming of theconversion layer of the color panel, a profile of an element arranged atan edge of the display area (for example, where the third element 146shown in FIG. 2A is arranged) may have a different form than a profileof an element arranged in a center portion of the display area (forexample, where the first element 142 and/or the second element 144 shownin FIG. 2A are arranged). In this case, defects may occur during aprocess of forming a capping layer on the color conversion layer andcause deterioration of components provided in the color panel. Accordingto one or more embodiments of the present disclosure, the color panel100 may include the dummy element 148 to improve reliability problemsdue to the deterioration stated above.

The light-shielding member 130 may be located in correspondence (tocorrespond) to an area between each of the pixel areas (for example,PA1, PA2, and PA3) of the display area DA and the non-display area NDA.The light-shielding member 130 may be interposed between the substrate110 and the color conversion layer 140. The light-shielding member 130may include, for example, a black matrix, a black pigment, a metalmaterial, and/or the like. In some embodiments, the light-shieldingmember 130 may include a material having a reflective characteristic.

The color filter layer 120 may be interposed between the substrate 110and the color conversion layer 140 and may include color filters 122,124, and 126 that selectively transmit light of a particular wavelengthband. The color filters 122, 124, and 126 may be located incorrespondence (to correspond) to the plurality of pixel areas PA (forexample, PA1, PA2, and PA3) provided in the display area DA. Forexample, as shown in FIG. 2A, the color filters 122, 124, and 126respectively located in correspondence to the plurality of pixel areasPA1, PA2, and PA3 may be spaced apart from one another with thelight-shielding member 130 therebetween.

The color filter layer 120 may include a first color filter 122 thatcovers the first pixel area PA1, a second color filter 142 that coversthe second pixel area PA2, and a third color filter 126 that covers thethird pixel area PA3.

For example, the first color filter 122 may selectively transmit thelight of the first wavelength band, the second color filter 124 mayselectively transmit the light of the second wavelength band, and thethird color filter 126 may selectively transmit the light of the thirdwavelength band. The light of the first wavelength band may correspondto red light, the light of the second wavelength band may correspond togreen light, and the light of the third wavelength band may correspondto blue light.

According to an embodiment, the color panel 100 may further include alight-shielding color filter 226. The light-shielding color filter 226may be arranged between the plurality of pixel areas. For example, thelight-shielding color filter 226 may be arranged between the first pixelarea PA1 and the second pixel area PA2 as shown in FIG. 2A. The firstcolor filter 122 and the second color filter 124 may be spaced apartfrom each other by the light-shielding color filter 226 and thelight-shielding member 130 stacked on the light-shielding color filter226. The light-shielding color filter 226 may serve as an auxiliarylight-shielding element such that light is not emitted from an areabetween the first pixel area PA1 and the second pixel area PA2. Thelight-shielding color filter 226 may include the same material as thethird color filter 126.

According to one or more embodiments, in the color panel 100, a portionof the first color filter 122 and a portion of the second color filter124 may be arranged with (e.g., side-contacting) the light-shieldingmember 130. In addition, a portion of the light-shielding member 130 maybe arranged on the third color filter 126. In other words, a portion ofthe third color filter 126 may be located between the substrate 110 andthe light-shielding member 130 (in the thickness direction or z-axisdirection).

The capping layer 145 and the planarization layer 150 may be arranged tocover each element of the color conversion layer 140.

The capping layer 145 may include a transmissive inorganic insulatingmaterial. For example, the capping layer 145 may include a material suchas silicon oxide (SiO_(x)), silicon nitride (SiN_(x)), and/or siliconoxynitride (SiON).

The planarization layer 150 may planarize a surface of the substrate 110on which the color conversion layer 140 is arranged. The planarizationlayer 150 may include a transparent material such that the incidentlight Li is irradiated toward the color conversion layer 140. Forexample, the planarization layer 150 may include a transparent organicmaterial such as a polyimide resin, an acryl resin, and/or a resistmaterial. The planarization layer 150 may be formed by a wet process(such as a slit coating method and/or a spin coating method), and/or adry process (such as a chemical vapor deposition method and/or a vacuumdeposition method). However, embodiments of the present disclosure arenot limited to materials and forms stated above.

FIG. 2B is a cross-sectional view of the color panel 100 according toanother embodiment. For example, FIG. 2B may be a cross-sectional viewof the color panel 100 when the display apparatus 1000 shown in FIG. 1is taken (cut) along line I-I′.

According to one or more embodiments, at least one element covering aparticular pixel area adjacent to the non-display area NDA may extendfrom the display area DA toward the non-display area NDA to cover aportion of the non-display area NDA.

For example, as shown in FIG. 2B, the third element 146 that covers thethird pixel area PA3 may include a portion located in the display areaDA and a portion located in the non-display area NDA. The portion of thethird element 146 located in the display area DA may be integral withthe portion of the third element 146 located in the non-display areaNDA. In other words, the third element 146 may be arranged to extendfrom a portion of the display area DA to the non-display area NDA.

As shown in FIG. 2B, the color panel 100 may further include the dummyelement 148 that is apart from the third element 146 and arranged in thenon-display area NDA. Description of the dummy element 148 may be thesame as the one provided with reference to FIG. 2A.

According to another embodiment, the color panel 100 may not include thedummy material 148.

FIG. 2C is a cross-sectional view of the color panel 100 according toanother embodiment. For example, FIG. 2C may be a cross-sectional viewof the color panel 100 when the display apparatus 1000 shown in FIG. 1is taken (cut) along line I-I′.

Referring to FIG. 2C, the color panel 100 according to an embodiment mayfurther include a dummy color filter 120′.

The dummy color filter 120′ may be arranged apart from the dummy element148 (for example, the dummy element 148 shown in FIG. 2A) in a portionof the non-display area NDA. In other words, the dummy element 148 maybe arranged between the third element 146 and the dummy color filter120′.

The dummy color filter 120′ may include the same material as at leastone selected from the color filters 122, 124, and 126 included in thecolor filter layer 120 (and the plurality of elements 142, 144, and146).

For example, the dummy color filter 120′ may include a double-layerstructure in which a first dummy color filter 122′ including the samematerial as the first color filter 122 and a second dummy color filter124′ including the same material as the second color filter 124 arestacked.

In some embodiments, the dummy color filter 120′ may include a singlelayer structure including any one of the first dummy color filter 122′or the second dummy color filter 124′.

The color panel 100 may include the dummy element 148 arranged in thenon-display area NDA. Description of the dummy element 148 may be thesame as the one provided with reference to FIG. 2A.

The dummy element 148 and the dummy color filter 120′ may be arranged inthe non-display area NDA apart from the display area DA, but arrangementorder is not limited to the structure shown in FIG. 2C. For example, thedummy element 148 may be arranged between the third element 146 and thedummy color filter 120′ in the non-display area NDA (in the x-axisdirection). In some embodiments, the dummy element 148 may be arrangedto overlap the dummy color filter 120′ (in the z-axis direction).

According to one or more embodiments, the color panel 100 is not limitedto the structures shown in FIGS. 2A to 2C and may have structures ofvarious suitable combinations.

For example, the color panel 100 may have a structure as that of thecolor panel 100 shown in FIG. 2C, without the dummy element 148. Asanother example, the color panel 100 may have a structure as that of thecolor panel 100 shown in FIG. 2A, wherein the dummy color filter 120′that is apart from the dummy element 148 and arranged in the non-displayarea NDA is further included in the structure. In some embodiments, thecolor panel 100 may have a structure as that of the color panel 100shown in FIG. 2A, wherein the dummy color filter 120′ is arrangedinstead of the dummy element 148 in the structure.

FIGS. 3A through 3D are cross-sectional views of the color panel 100according to one or more embodiments of the present disclosure. Forexample, FIGS. 3A to 3D may be cross-sectional views of the color panel100 when the display apparatus 1000 shown in FIG. 1 is cut along lineII-II′.

Referring to FIG. 3A, the color panel 100 may include the substrate 110,a color filter 220, and an element 240.

The substrate 110 may include the display area DA and the non-displayarea NDA. The color panel 100 may further include the light-shieldingmember 130 that is interposed between the substrate 110 and the colorfilter 220 and arranged in correspondence (to correspond) to thenon-display area NDA. In addition, the color panel 100 may furtherinclude the light-shielding color filter 226 that is interposed betweenthe substrate 110 and the light-shielding member 130 and serves as theauxiliary light-shielding element in an area. The light-shielding colorfilter 226 may include a material that may selectively transmit thelight of the third wavelength band, and may cover at least a portion ofthe pixel areas PA included in the display area DA. For example, theportion of the pixel areas PA covered by the light-shielding colorfilter 226 may correspond to the pixel area emitting blue light.

As shown in FIG. 3A, the color filter 220 may extend from the displayarea DA to the non-display area NDA to cover a portion of thenon-display area NDA. For example, the color filter 220 may include aportion located in the display area DA and a portion located in thenon-display area NDA, and the portion located in the display area DA andthe portion located in the non-display area NDA may be integral witheach other. The color filter 220 may include the same material as anyone of the first color filter (for example, the first color filter 122shown in FIG. 2A) that may selectively transmit the light of the firstwavelength band or the second color filter (for example, the secondcolor filter 124) that may selectively transmit the light of the secondwavelength band.

The color filter 220 may cover a portion of pixel areas PA in thedisplay area DA. For example, the portion of pixel areas PA covered bythe color filter 220 may correspond to a pixel area emitting red lightand/or green light.

The element 240 may be interposed between the color filter 220 and theplanarization layer 150. The element 240 may include a first portion 240a located in the display area DA. In addition, the element 240 mayinclude a second portion 240 b that is integral with the first portion240 a and is located in the non-display area NDA. The element 240 may bearranged on the color filter 220 in correspondence (to correspond) to atleast a portion of an area in which the color filter 220 is formed.

The element 240 may include the same material as the first colorconversion element (that converts the incident light into the light ofthe first wavelength band and outputs the converted light) or the secondcolor conversion elements (that converts the incident light into thelight of the second wavelength band and outputs the converted light).

Referring to FIG. 3B, the color panel 100 may further include a dummyelement 240′ interposed between the light-shielding member 130 and theplanarization layer 150.

The dummy element 240′ may be located in the non-display area NDA andarranged apart from the element 240 by a distance. For example, thedummy element 240′ may be arranged at a distance of about 5 um to about15 um from the element 240.

The dummy element 240′ may include the same material as the element 240.For example, the dummy element 240′ may include the same material as thefirst color conversion element or the second color conversion element onthe display area DA.

Referring to FIG. 3C, the dummy element 240′ may be interposed betweenthe color filter 220, which extends to the non-display area NDA, and theplanarization layer 150.

The dummy element 240′ according to various embodiments of the presentdisclosure may be arranged in a portion of the non-display area NDA inwhich the color filter 220 is not formed, as shown in FIG. 3B, orarranged in a portion of the non-display area NDA in which the colorfilter 220 is formed, as shown in FIG. 3C.

Referring to FIG. 3D, the color panel 100 may further include a dummycolor filter 220′ interposed between the light-shielding member 130 andthe planarization layer 150.

The dummy color filter 220′ may be interposed between thelight-shielding member 130 and the planarization layer 150 in thenon-display area NDA. The dummy color filter 220′ may be arranged apartfrom each of the element 240 and the dummy element 240′. As shown inFIG. 3D, the dummy element 240′ may be arranged between the element 240and the dummy color filter 220′.

In another embodiment, the dummy color filter 220′ may be furtherprovided between the color filter 220 and the planarization layer 150 inthe color panel 100 shown in FIG. 3C. For example, the dummy colorfilter 220′ may be arranged apart from the dummy element 240′. The dummyelement 240′ may be arranged between the element 240 and the dummy colorfilter 220′.

The dummy color filter 220′ may include at least one of the first colorfilter (that selectively transmits the light of the first wavelengthband) or the second color filter (that selectively transmits the lightof the second wavelength band). For example, the dummy color filter 220′may include a single layer structure including the same material as anyone of the first color filter or the second color filter, or may includea double-layer structure including the same material as the first colorfilter and/or the second color filter. For example, the dummy colorfilter 220′ may include the same material as the color filter 220.

FIG. 4 is a cross-sectional view of the display apparatus 1000 accordingto an embodiment. FIG. 4 may be a cross-sectional view of the displayapparatus 1000 when the display apparatus 1000 of FIG. 1 is cut alongline II-II′.

Referring to FIG. 4, the display apparatus 1000 may include the displaypanel 400 and the color panel 100 arranged on the display panel 400.

The display panel 400 may include a lower substrate 410 and a pluralityof pixels arranged on the lower substrate 410. The plurality of pixelsmay each include a pixel circuit PC, including a thin-film transistor,and an emission element (for example, an organic light-emitting diodeOLED) electrically connected to the pixel circuit PC.

The lower substrate 410 may include glass and/or a polymer resin. Thepolymer resin may include polyethersulfone (PES), polyarylate (PAR),polyetherimide (PEI), polyethylene naphthalate (PEN), polyethyleneterephthalate (PET), polyphenylene sulfide (PPS), polyimide (PI),polycarbonate (PC), cellulose acetate propionate (CAP), and/or the like.For example, the substrate 410 including the above-stated polymer resinmay be flexible, rollable, and/or bendable. The substrate 410 may have amulti-layer structure including a layer, which includes the above-statedpolymer resin, and an inorganic layer. For example, the substrate 410may include a multi-layer structure including a first polymer resinlayer and a second polymer resin layer. An inorganic layer may beinterposed between the first polymer resin layer and the second polymerresin layer.

A semiconductor layer A may include amorphous silicon. In someembodiments, the semiconductor layer A may include an oxidesemiconductor including indium (In), gallium (Ga), stannum (Sn),zirconium (Zr), vanadium (V), hafnium (Hf), cadmium (Cd), germanium(Ge), chromium (Cr), titanium (Ti), and/or zinc (Zn). For example, thesemiconductor layer A may include an oxide semiconductor such as indiumgallium zinc oxide (IGZO), zinc tin oxide (ZTO), and/or zinc indiumoxide (ZlO).

A gate electrode G is arranged above the semiconductor layer A with agate insulating layer 413 therebetween. The gate electrode G may includemolybdenum (Mo), aluminum (Al), copper (Cu), titanium (Ti), and/or thelike, and may include a single layer or a multi-layer. For example, thegate electrode G may be a single Mo layer.

The gate insulating layer 413 may include silicon oxide (SiO₂), siliconnitride (SiN_(x)), silicon oxynitride (SiON), aluminum oxide (Al₂O₃),titanium oxide (TiO₂), tantalum oxide (Ta₂O₅), hafnium oxide (HfO₂),zinc oxide (ZnO₂), and/or the like.

A source electrode S and/or a drain electrode D may be arranged abovethe gate electrode G with an interlayer insulating layer 415therebetween. The source electrode S and/or the drain electrode D mayinclude Mo, Al, Cu, Ti, and/or the like, and may include a single layeror a multi-layer. For example, the source electrode S and/or drainelectrode D may have a Ti/Al/Ti multi-layer structure.

A lower planarization layer 417 may cover an upper surface of the sourceelectrode S and/or the drain electrode D and may have an even (orsubstantially even) upper surface such that a pixel electrode 440 may beformed evenly. The lower planarization layer 417 may include a singlelayer or a multi-layer including an organic material. The lowerplanarization layer 417 may include a commercial polymer (likebenzocyclobutene (BCB), polyimide, hexamethyldisiloxane (HMDSO),polymethylmethacrylate (PMMA), and/or polystyrene (PS)), a polymerderivative having a phenolic group, an acryl-based polymer, animide-based polymer, an acrylether-based polymer, an amide-basedpolymer, a fluoride-based polymer, a p-xylene-based polymer, avinylalcohol-based polymer, a blend thereof, and/or the like. Theplanarization layer 417 may include an inorganic material. The lowerplanarization layer 417 may include silicon oxide (SiO₂), siliconnitride (SiN_(x)), silicon oxynitride (SiON), aluminum oxide (Al₂O₃),titanium oxide (TiO₂), tantalum oxide (Ta₂O₅), hafnium oxide (HfO₂),zinc oxide (ZnO₂), and/or the like. When the lower planarization layer417 includes an inorganic material, chemical planarization polishing maybe performed depending on occasions. In some embodiments, the lowerplanarization layer 417 may include both an organic material and aninorganic material.

A pixel electrode 440 may include a (semi)transmissive electrode or areflective electrode. In some embodiments, the pixel electrode 440 mayinclude a reflective film including silver (Ag), magnesium (Mg), Al,platinum (Pt), palladium (Pd), gold (Au), nickel (Ni), neodymium (Nd),iridium (Ir), Cr, a combination thereof, and/or the like, and atransparent or semi-transparent electrode formed on the reflective film.The transparent or semi-transparent electrode layer may include at leastone material selected from among indium tin oxide (ITO), indium zincoxide (IZO), zinc oxide (ZnO), indium oxide (In₂O₃), indium galliumoxide (IGO), and aluminum zinc oxide (AZO). In some embodiments, thepixel electrode 440 may include an ITO/Ag/ITO stack structure.

A pixel defining layer 430 may be arranged on the lower planarizationlayer 417. The pixel defining layer 430 may define an emission area ofeach pixel by having an opening that exposes a center portion of thepixel electrode 440. In addition, the pixel defining layer 430 mayincrease distances between edges of the pixel electrode and the oppositeelectrode 460, above the pixel electrode 440, thereby preventing (orreducing) an arc and/or the like from occurring at the edges of thepixel electrode 440. The pixel defining layer 430 may be formed of anorganic insulating material such as polyimide, polyamide, an acrylresin, benzocyclobutene, hexamethyldisiloxane (HMDSO), a phenol resinand/or the like in a method such as a spin coating method, withoutlimitation.

An intermediate layer 450 of an organic light-emitting diode OLED mayinclude an organic emission layer. The organic emission layer mayinclude an organic material that includes a fluorescent and/orphosphorescent material emitting red, green, blue, and/or white light.The organic emission layer may include a low molecular weight materialor a high molecular weight material. A functional layer such as a holetransport layer (HTL), a hole injection layer (HIL), an electrontransport layer (ETL), an electron injection layer (HIL), and/or thelike may be selectively further arranged under and above the organicemission layer. The intermediate layer 450 may be arranged incorrespondence (to correspond) to each of the plurality of pixelelectrodes 440. However, the intermediate layer 450 is not limitedthereto. The intermediate layer 450 may be variously suitably modified,for example, to include a layer that is integral over the plurality ofpixel electrodes 440.

The opposite electrode 460 may be a transmissive electrode or areflective electrode. In some embodiments, the opposite electrode 460may be a transparent or a semi-transparent electrode and may include ametal thin-film that has a small work function, the metal thin-filmincluding Li, Ca, LiF/Ca, LiF/AI, Al, Ag, Mg, and/or a combinationthereof. In some embodiments, a transparent conductive oxide (TCO) filmsuch as ITO, IZO, ZnO, and/or In₂O₃ may be further arranged on the metalthin-film. The opposite electrode 460 may be arranged over the displayarea DA and the non-display area NDA, and may be arranged on theintermediate layer 450 and the pixel defining layer 430. The oppositeelectrode 460 may be integrally formed over the plurality of emissionelements OLED.

The thin-film encapsulation layer 470, which is a sealing member forsealing the emission elements OLED, may include at least one inorganicencapsulation layer and at least one organic encapsulation layer. The atleast one inorganic encapsulation layer may include at least oneinorganic insulating material selected from among aluminum oxide,titanium oxide, tantalum oxide, hafnium oxide, zinc oxide, siliconoxide, silicon nitride, and silicon oxynitride. The organicencapsulation layer may include a polymer-based material. Thepolymer-based material may include polyethylene terephthalate,polyethylene naphthalate, polycarbonate, polyimide, polyethylenesulfonate, polyoxymethylene, polyarylate, hexamethyldisiloxane, anacryl-based resin (for example, polymethylmethacrylate, polyacrylicacid, and/or the like), and/or any combination thereof.

The color panel 100 may have a plurality of pixel areas arranged on thedisplay panel 400 and respectively overlapping the plurality of emissionelements OLED. For example, in the display apparatus 1000, light emittedfrom each pixel of the display panel 400 may be incident on the colorpanel 100, and a wavelength band of the incident light may be convertedin the color panel 100, or only a particular wavelength band of theincident light may be transmitted, or the incident light may bescattered and output toward a pixel area at an upper portion of thecolor panel 100. Light incident through the display panel 400 accordingto an embodiment may correspond to blue light.

The color panel 100 in FIG. 4 may be identical to (or substantially thesame as) any one of the structures described above with reference toFIGS. 2A through 3D.

According to an embodiment, the color panel 100 may include the colorconversion layer 140 that is interposed between the color filter layer120 (in which the color filters 122, 124, and 126 are arranged) and thedisplay panel 400, the color conversion layer 140 including the firstcolor conversion element (for example, the first element 142) thatconverts the light incident on the color panel 100 into light of aparticular wavelength band and outputs the converted light, and thesecond color conversion element (for example, the second element 144)separated from the first color conversion element.

The color panel 100 may include the element (for example, the thirdelement 146) that is interposed between the color filter layer 120 andthe display panel 400 and integrally covering a portion of the displayarea DA and a portion of the non-display area NDA. The element may covera pixel area PA located at the end portion of the display area DA andextend to a portion of the non-display area NDA. The element (forexample, the third element 146) may include the same material (e.g., maybe the same in material) as the first color conversion element (forexample, the first element 142) or the second color conversion element(for example, the second element 144) located in the display area DA, ormay include the same material (e.g., may be the same in material) as thelight-transmitting element that is located in the display area DA andthat transmits the incident light without converting the wavelengthband.

FIG. 5 is an equivalent circuit diagram of the pixel circuit PC includedin the display apparatus 1000 according to an embodiment.

The pixel circuit PC may include a driving thin-film transistor T1, aswitching thin-film transistor T2, and a storage capacitor Cst. Theswitching thin-film transistor T2 is connected to a scanning line SL anda data line DL and transmits a data signal Dm, which is input throughthe data line DL, to the driving thin-film transistor T1, in response toa scanning signal Sn input through the scanning line SL.

The storage capacitor Cst is connected to the switching thin-filmtransistor T2 and a driving voltage line PL, and stores a voltagecorresponding to a difference between a voltage received from theswitching thin-film transistor T2 and a first power voltage (ELVDD orthe driving voltage) provided to the driving voltage line PL.

The driving thin-film transistor T1 may be connected to the drivingvoltage line PL and the storage capacitor Cst, and may control a drivingcurrent flowing from the driving voltage line PL to the organiclight-emitting diode OLED in correspondence to a value of the voltagestored in the storage capacitor Cst. The organic light-emitting diodeOLED may emit light having a certain luminance according to the drivingcurrent.

FIG. 5 shows a case in which the pixel circuit PC includes two thin-filmtransistors and one storage capacitor, but the present disclosure is notlimited thereto. The pixel circuit PC may include seven thin-filmtransistors and one storage capacitor, for example.

FIGS. 6A and 6B are cross-sectional views of the display apparatus 1000according to one or more embodiments of the present disclosure. FIGS. 6Aand 6B may be cross-sectional views of the display apparatus 1000 whenthe display apparatus 1000 of FIG. 1A is cut along line I-I′.

FIG. 6A is a cross-sectional view of the display apparatus 1000including the color panel 100 shown in FIG. 2A, and FIG. 6B is across-sectional view of the display apparatus 1000 including the colorpanel 100 shown in FIG. 2B. Hereinafter, refer to FIGS. 2A and 2B fordescriptions of repeated elements.

As shown in FIGS. 6A and 6B, the display panel 400 may include theplurality of emission elements OLED, and the plurality of emissionelements OLED may be arranged to overlap the plurality of pixel areas ofthe color panel 100, respectively.

The display apparatus 1000 including the above-stated structure may be atelevision 1A as shown in FIG. 7A, a laptop computer and/or a foldabletablet PC 1B as shown in FIG. 7B, and/or a portable display 1C (such asa mobile phone) as shown in FIG. 7C. In some embodiments, the displayapparatus may be applied to a display portion provided in an artificialintelligence speaker. A structure according to embodiments of thepresent disclosure is not limited to a particular electronic device aslong as the electronic device is capable of providing a certain image.

According to embodiments of the present disclosure, in the displayapparatus, oxidization and/or deterioration of the color conversionelements arranged in the display area may be minimized (or reduced), andthus, a color panel having improved display characteristic and/orreliability, and a display apparatus including the color panel, may beprovided. The scope of the present disclosure is not limited by theeffects described above.

As used herein, expressions such as “at least one of”, “one of”, and“selected from”, when preceding a list of elements, modify the entirelist of elements and do not modify the individual elements of the list.

Further, the use of “may” when describing embodiments of the presentdisclosure refers to “one or more embodiments of the presentdisclosure”. Spatially relative terms, such as “beneath,” “below,”“lower,” “above,” “upper,” “bottom,” “top” and the like, may be usedherein for ease of description to describe one element or feature'srelationship to another element(s) or feature(s) as illustrated in thefigures. It will be understood that the spatially relative terms areintended to encompass different orientations of the device in use oroperation in addition to the orientation depicted in the figures. Forexample, if the device in the figures is turned over, elements describedas “below” or “beneath” other elements or features would then beoriented “above” or “over” the other elements or features. Thus, theterm “below” may encompass both an orientation of above and below. Thedevice may be otherwise oriented (rotated 90 degrees or at otherorientations), and the spatially relative descriptors used herein shouldbe interpreted accordingly.

As used herein, the terms “substantially”, “about”, and similar termsare used as terms of approximation and not as terms of degree, and areintended to account for the inherent deviations in measured orcalculated values that would be recognized by those of ordinary skill inthe art.

Any numerical range recited herein is intended to include all sub-rangesof the same numerical precision subsumed within the recited range. Forexample, a range of “1.0 to 10.0” is intended to include all subrangesbetween (and including) the recited minimum value of 1.0 and the recitedmaximum value of 10.0, that is, having a minimum value equal to orgreater than 1.0 and a maximum value equal to or less than 10.0, suchas, for example, 2.4 to 7.6. Any maximum numerical limitation recitedherein is intended to include all lower numerical limitations subsumedtherein and any minimum numerical limitation recited in thisspecification is intended to include all higher numerical limitationssubsumed therein. Accordingly, Applicant reserves the right to amendthis specification, including the claims, to expressly recite anysub-range subsumed within the ranges expressly recited herein.

It should be understood that embodiments described herein should beconsidered in a descriptive sense only and not for purposes oflimitation. Descriptions of features or aspects within each embodimentshould typically be considered as available for other similar featuresor aspects in other embodiments. While one or more embodiments have beendescribed with reference to the figures, it will be understood by thoseof ordinary skill in the art that various changes in form and detailsmay be made therein without departing from the spirit and scope of thepresent disclosure as defined by the following claims and theirequivalents.

What is claimed is:
 1. A color panel comprising: a substrate comprisinga display area and a non-display area at least partially surrounding thedisplay area, the display area comprising a plurality of pixel areas; acolor filter layer on the substrate to transmit incident light of aparticular wavelength band; and a color conversion layer on the colorfilter layer, the color conversion layer comprising a plurality ofquantum dots or light-scattering particles, wherein the plurality ofquantum dots are to convert the incident light into converted light of aparticular wavelength band, different from the wavelength band of theincident light, and output the converted light, wherein thelight-scattering particles are to transmit the incident light, andwherein the color conversion layer further comprises, a dummy elementthat is apart from the display area and is in the non-display area. 2.The color panel of claim 1, wherein the plurality of pixel areascomprises a first pixel area, a second pixel area, and a third pixelarea, and the color conversion layer comprises: a first element to coverthe first pixel area, a second element to cover the second pixel area,and a third element to cover the third pixel area, wherein the thirdelement comprises: a first portion in the display area, and a secondportion that is integral with the first portion and is in thenon-display area, and wherein the first element, the second element, thethird element, and the dummy element are arranged apart from oneanother.
 3. The color panel of claim 2, wherein the dummy elementcomprises the same material as that of the first element, the secondelement, and/or the third element.
 4. The color panel of claim 1,further comprising a light-shielding member between the substrate andthe color conversion layer, the light-shielding member being in thenon-display area and between any two of the plurality of pixel areas. 5.The color panel of claim 4, wherein the plurality of pixel areascomprises a first pixel area, a second pixel area, and a third pixelarea, and the color filter layer comprises: a first color filter tocover the first pixel area; a second color filter to cover the secondpixel area; and a third color filter to cover the third pixel area,wherein the color panel further comprises: a light-shielding colorfilter between the substrate and the light-shielding member, thelight-shielding color filter corresponding to an area between the firstpixel area and the second pixel area, and the light-shielding colorfilter comprises the same material as that of the third color filter. 6.The color panel of claim 5, wherein a portion of the third color filteris between the substrate and the light-shielding member.
 7. The colorpanel of claim 1, further comprising a dummy color filter that is apartfrom the dummy element and is in at least in a portion of thenon-display area, wherein the dummy element is between the display areaand the dummy color filter.
 8. The color panel of claim 2, wherein thefirst element, the second element, the third element, and the dummyelement each correspond to any one of: a first color conversion elementcomprising a plurality of quantum dots to convert the incident lightinto light of a first wavelength band; a second color conversion elementcomprising a plurality of quantum dots to convert the incident lightinto light of a second wavelength band; or a light-transmitting elementcomprising light-scattering particles to transmit the incident light. 9.A display apparatus comprising: a display panel comprising a pluralityof emission elements; and a color panel on the display panel andcomprising a plurality of pixel areas to overlap the plurality ofemission elements, wherein the color panel further comprises: asubstrate comprising a display area and a non-display area surroundingthe display area, the display area comprising the plurality of pixelareas; a light-shielding member arranged to correspond to thenon-display area; a color filter layer transmitting incident light of aparticular wavelength band; and a color conversion layer on the colorfilter layer, wherein the color conversion layer comprises a pluralityof elements, and one of the plurality of elements comprises a firstportion located in the display area and a second portion, integral withthe first portion, and located in the non-display area.
 10. The displayapparatus of claim 9, wherein the color conversion layer comprises: afirst color conversion element to convert the incident light into lightof a first wavelength band; a second color conversion element to convertthe incident light into light of a second wavelength band; and alight-transmitting element.
 11. The display apparatus of claim 10,wherein the one of the plurality of elements comprises any one selectedfrom the first color conversion element, the second color conversionelement, and the light transmitting element.
 12. The display apparatusof claim 10, further comprising: a dummy element in the non-displayarea, wherein the dummy element is arranged apart from the one of theplurality of elements.
 13. The display apparatus of claim 12, whereinthe color filter layer comprises: a first color filter between thesubstrate and the first color conversion element to transmit light of afirst wavelength band; a second color filter between the substrate andthe second color conversion element to transmit light of a secondwavelength band; and a third color filter between the substrate and thelight-shielding member to transmit light of a third wavelength band. 14.The display apparatus of claim 13, wherein the dummy element comprisesthe same material as that of at least one selected from the first colorconversion element, the second color conversion element, the first colorfilter, and the second color filter.
 15. A display apparatus comprising:a display panel comprising a first emission element, a second emissionelement, and a third emission element; and a color panel on the displaypanel, wherein the color panel comprises: a substrate comprising adisplay area and a non-display area at least partially surrounding thedisplay area, a color filter layer on the substrate to transmit incidentlight of a particular wavelength band, and a color conversion layer onthe color filter layer, the color conversion layer comprising aplurality of quantum dots or light-scattering particles, wherein theplurality of quantum dots are to convert the incident light intoconverted light of a particular wavelength band and output the convertedlight, wherein the light-scattering particles are to transmit theincident light, and wherein the color conversion layer comprises, afirst element to overlap a first emission element, a second element tooverlap a second emission element, a third element to overlap a thirdemission element, and a dummy element in at least a portion of thenon-display area, wherein the first element, the second element, thethird element, and the dummy element are apart from one another.
 16. Thedisplay apparatus of claim 15, wherein a portion of the third element ofthe color conversion layer extends toward the non-display area andcovers a portion of the non-display area.
 17. The display apparatus ofclaim 15, wherein one selected from the first element, the secondelement, and the third element comprises first quantum dots to convertthe incident light into light of a wavelength band of a first color,another one selected from the first element, the second element, and thethird element comprises second quantum dots to convert the incidentlight into light of a wavelength band of a second color, and remainingone of the first element, the second element, and the third elementcomprises light-scattering particles.
 18. The display apparatus of claim17, wherein the dummy element comprises: the same material as that ofany one of the first element, the second element, or the third element.19. The display apparatus of claim 15, wherein the color filtercomprises: a first color filter to overlap the first element; a secondcolor filter to overlap the second element; and a third color filter tooverlap the third element, and the color panel further comprises: amaterial portion between the first color filter and the second colorfilter and comprising the same material as that of the third colorfilter.
 20. The display apparatus of claim 19, wherein the dummy elementcomprises: the same material as that of any one or two color filtersfrom among the first color filter, the second color filter, and thethird color filter.